Back in March time the computer intermittently froze, without any reason why...so I cleaned it out a bit, as it was extremely dusty. After that it worked... and it was running for over 41 days, I really thought I’d cracked it. Not that lucky though...

On Sunday night it ''froze'' again, no explanation to why. Doesn’t matter what the computer is doing at the time, and nothing is displayed in the error logs either. Now since then it hasn't stopped freezing, intermittently every single day. Sometimes it can go for 4hrs... Sometimes 1... And sometimes a freeze is just instant from boot. I cleaned it out again the other day, but this time it hasn't cured the intermittent freezing.

My diagnostic on the problem would be the RAM or maybe overheating... would you agree? (Confused to how it can run for 41 days though…)
Reason I ask is that I have no spare hardware here, and I don't want to be going out and spending money on new hardware if I’m not 100% sure it will fix the problem. Just posting to see what you guys think... and if you have any other ideas to what the problem may be.

The answer is in your post =(It’s a Compaq system)!:) LOL
Just kidding ,it maybe heat,this time of the year its gets hot in my house and even hotter in the tower,mine shut down the other day and wouldn't restart untill it cooled down a bit !
Or it could be ram.

The answer is in your post =(It’s a Compaq system)!:) LOL
Just kidding ,it maybe heat,this time of the year its gets hot in my house and even hotter in the tower,mine shut down the other day and wouldn't restart untill it cooled down a bit !
Or it could be ram.

lol could be that its a compaq..... anyway

Heat isn't an issue really, CPU is running stable @ 40c when it crashes..the case has been open, breeze coming through the window.. and it still froze. I've got two chips of SDRAM in the post for friday... what do you think the chances are of that fixing the problem?

I had the same problem as you with the sudden freezing with no seeming pattern to it, i narrowed mine down to a bad stick of ram, remove all but one stick of ram and see if it happens again, if it does switch out that stick with another boot and see what happens. Hope it helps